Pith Number

pith:2WW3VD6E

pith:2018:2WW3VD6EWT54L2IZL45LBI7WK4

not attested not anchored not stored refs pending

Toward Architectural Knowledge Sustainability. New Opportunities to Extend the Longevity of Systems

Carlos Carrillo, Elisa Yumi Nakagawa, Rafael Capilla, Uwe Zdun

arxiv:1802.04015 v1 · 2018-02-12 · cs.SE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2WW3VD6EWT54L2IZL45LBI7WK4}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:23:49.734160Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5adba8fc4b4fbc5e9195f3ab0a3f6571e7cdee0878b4fc1ba6f097884a707a8

Aliases

arxiv: 1802.04015 · arxiv_version: 1802.04015v1 · doi: 10.48550/arxiv.1802.04015 · pith_short_12: 2WW3VD6EWT54 · pith_short_16: 2WW3VD6EWT54L2IZ · pith_short_8: 2WW3VD6E

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/2WW3VD6EWT54L2IZL45LBI7WK4 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: d5adba8fc4b4fbc5e9195f3ab0a3f6571e7cdee0878b4fc1ba6f097884a707a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c6cf37f832c08285abae2ee8fb45234f46c1ff66680ca2095c9cd845eb20e68e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2018-02-12T12:50:32Z",
    "title_canon_sha256": "357f44dea1c7e7a1388840a2404770427d2fa9a711b37df298ffc2c2752d38ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.04015",
    "kind": "arxiv",
    "version": 1
  }
}